The Er'ther Lands are what constitute the world in which Tales of Destiny and Tales of Destiny 2 take place, while the planet itself is unnamed. The primary source of energy in this world derives from an ancient mineral resource known as Lens. Business, politics, and religion revolve around the exploitation of this resource, leading to conflicts among the nations of the world throughout history. Lens is said to come from the fragments of an ancient meteor that crashed into the planet's surface prior to the split of the Er'ther and Aeth'er races.